32064440021264 has 80 divisors (see below), whose sum is σ = 72520956837888. Its totient is φ = 13447576112256.

The previous prime is 32064440021179. The next prime is 32064440021291. The reversal of 32064440021264 is 46212004446023.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36237137 + ... + 37111439.

Almost surely, 2^{32064440021264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32064440021264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36260478418944).

32064440021264 is an abundant number, since it is smaller than the sum of its proper divisors (40456516816624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32064440021264 is a wasteful number, since it uses less digits than its factorization.

32064440021264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881332 (or 881326 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 32064440021264 its reverse (46212004446023), we get a palindrome (78276444467287).

The spelling of 32064440021264 in words is "thirty-two trillion, sixty-four billion, four hundred forty million, twenty-one thousand, two hundred sixty-four".